Gun carriage



Aug. 21, 1934. c. GQEBERT 1,970,560

GUN CARRIAGE Filed March 1, 1932 2 Sheets-Sheet 1 Inventor Elmer CGuehart Attur ay' Aug. 21, 1934. E. c. GOEBERT 1,970,560

, GUN CARRIAGE Filed March 1, 1932 2 Sheets-Sheet 2 Inventor Elmerlll'uahert Attnr'nay Patented Aug. 21, 1934 GUN CARRIAGE Elmer C.Goebert, United States Army,

Philadelphia, Pa.

Application March 1, 1932, Serial No. 596,088

Claims.

(Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 O. G. 157) The invention described hereinmay be manufactured and used by or for the Government for governmentalpurposes, without the payment to me of any royalty thereon.

This invention relates to a gun carriage.

The purpose of the present invention is to provide a gun carriagewherein a trail mounted for traversing movement on a crank axle isconnected thereto by a strong simple bracing means.

To these and other ends, the invention consists in the construction,arrangement and combination of elements described hereinafter andpointed out in the claims forming a part of this specification.

A practical embodiment of the invention is illustrated in theaccompanying drawings, wherein:

Fig. 1 is a plan view of the gun carriage.

Fig. 2 is a view in side elevation with the rear Wheel removed.

Fig. 3 is a sectional view showing the traversing mechanism.

Fig. 4 is a view in rear elevation of one end of the axle.

Fig. 5 is a plan view in section of a portion of one of the dependingcrank arms, taken along line 5 of Figure 4.

Referring to the drawings by characters of reference, there is shown agun carriage which is a modification of the existing 75 m/m guncarriage, 3 French type. The carriage consists generally of an axle 5 onwhich a trail 6 is mounted through a bearing '7 for sliding movement.The axle is provided with threads 8 engaged by a nut 9 that is retainedlaterally relative to the trail by means of thrust washers 10 and 11,the former seated on an internal shoulder 12 of the bearing and thelatter seated on the inner end of one of the side brackets 13. By virtueof the lateral retention of the unit on the trail any rotation impartedto the nut will cause the trail to be moved across the axle. A gearwheel 14 on the nut is driven from actuating mechanism 15. All of theforegoing elements constitute the normal structure of the existing guncarriage and form no part of the present invention.

Instead of mounting the wheels 16 directly on the axle, they are ofsmall diameter and are mounted on spindles 17 at the lower end of adepending crank arm 18. The arm includes a bearing 19 fitting on thespindled end of the axle and retained thereon by a plug 20 threadedinternally to the axle.

A pair of braces 2121 connect the trail 6 and the depending arms 18. Thebraces are attached to opposite ends of a cross-rod 22 fast on the trailand to a U-bolt 23 secured to each arm 18 on the axis of the spindles17. When the trail is traversed across the axle the rear attachment ofthe braces will be moved laterally. Because of the rigidity of thebraces their forward attachment to the arms 13 undergoes a displacementand causes the arms to rotate slightly on their bearings.

I claim.

1. In a gun carriage, an axle, crank arms rotatably mounted on the endsof the axle and depending therefrom, a spindle on each arm, a wheel oneach spindle, a trail mounted on the axle for traversing movement, and arigid brace connecting the trail and each crank arm, the attachment tothe crank arm being in the plane of the spindle.

2. In a gun carriage, an axle, crank arms rotatably mounted on the endsof the axle and depending therefrom, a spindle on each arm, a wheel oneach spindle, a trail mounted on the axle for traversing movement, and arigid brace connecting the trail and each crank arm.

3. In a gun carriage, an axle including rotatably mounted dependingcrank arms, a trail mounted on the axle for traversing movement, and arigid brace connecting the trail and each crank arm.

4. The combination with a gun carriage axle designed for use ofrelatively large diameter wheels and a trail mounted on the axle fortraversing movement, of a substitute unit for the large diameter wheelscomprising crank arms journaled on the ends of the axle, a rigid braceconnecting the trail and each crank arm and holding the crank armsubstantially perpendicular to the trail and substantially rigidrelative to the axle, and a small diameter wheel on each crank arm.

5. The combination with a gun carriage axle designed for use ofrelatively large diameter wheels and a trail mounted on the axle fortraversing movement, of a substitute unit for the large diameter wheelscomprising crank arms journaled on the ends of the axle, a rigid braceconnecting the trail and each crank arm and holding the crank armsubstantially perpendicular to the trail, and a small diameter wheel oneach crank arm.

ELMER C. GOEBERT.

